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Ooze, Giant Red Amoeboid

Family: Oozes

Large ooze, unaligned

Armor Class 7
Hit Points 190 (20d10 + 80)
Speed 20 ft., climb 20 ft.

18 (+4) 4 (-3) 39 (+4) 4 (-5) 5 (-2) 2 (-5)

Damage Resistances cold
Damage Immunities fire, poison
Condition Immunities blinded, charmed, deafened, exhaustion, frightened, prone
Senses blindsight 60 ft. (blind beyond this radius), passive Perception 8
Challenge 10 (5,900 XP)


  • Amorphous. The ooze can move through a space as narrow as one inch wide without squeezing.
  • Corrosive Mass. A creature that touches the ooze or hits it with a melee attack while within five feet of it takes 14 (4d6) acid damage. Any nonmagical weapon made of metal or wood that hits the ooze corrodes. After dealing damage, the weapon takes a permanent and cumulative -1 penalty to damage rolls. If its penalty drops to -5, the weapon is destroyed. Nonmagical ammunition made of metal or wood that hits the ooze is destroyed after dealing damage. The ooze can eat through four-inch thick nonmagical wood or metal in one round.
  • Lightning Absorption. Whenever the ooze is subject to lightning damage, it takes no damage and instead regains a number of hit points equal to the lightning damage dealt.


  • Multiattack. The ooze makes two Pseudopod attacks.
  • Pseudopod. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) bludgeoning damage plus 27 (6d8) acid damage, and the target is grappled (escape DC 14). Until the grapple ends, the target is restrained and has disadvantage on Strength checks and Strength saving throws. The ooze cannot use the same pseudopod on another target. A restrained target takes 27 (6d8) acid damage at the start of each of the ooze’s turns. In addition, nonmagical armor worn by the target is partly dissolved and takes a permanent and cumulative -1 penalty to the AC it offers. The armor is destroyed if the penalty reduces its AC to 10.


These oozes are monstrous things found hunting in subterranean settings. They are always hungry and aggressive. Although a giant red amoeboid has no mind, it can sense living creatures and is an effective hunter. It can pass through a crack as small as one inch high and about six inches wide, or down a hole of three inches in diameter.


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